Shoe for grader blades



June 23, 1925. 1,543,223

J. H. M VEETY SHOE FOR GRADER- BLADES Filed Aug. 25, 1924 3 Sheets-Sheet 1 IlznzgSliM 14mg INVEN WITNESSES ATTORNEY June 23, 1925.

1,543,223 J. H. M VEETY SHOE FOR GRADEH BLADES 5 Sheets-Sheet 2 Filed Aug. 25, 1924 INVENTOR e WITNESSES ATTORNEY June 23,1925. 1,543,223

J. H. McVEETY SHOE FOR GRADER BLADES Filed Aug. 25, 1924 s Sheets-Sheet 5 liamesHRfiZa e l x;

ATTORNEY Patented June 23, 1925.

UNITED STATES JAMES H. McVEETY, OF MEMPHIS, TENNESSEE.

snon FOR GRADER BLADES.

Application filed August 25, 1924. Serial No, 734,105.

To all whom it may concern:

Be it known that 1, JAMES H. MoVnE'rY, a citizen of the United States, residing at Memphis, in the county of Shelby and State of Tennessee, have invented new and useful Improvements in Shoes for Grader Blades,

of which the following is a specification.

Theinvention relates to road graders, and

a particularly to a wearing .shoe attachment for the cutting edge of the same. Then the ordinary road grader used for grading earth roads is employed for maintenance Work, the

regular road grader blade is lowered so that it just touches the surface of: the road cutting off the high points and filling in the low points thereof.

In such 'serv1ce, it has been found that,

especially on gravel and like surfaced roads,

the sharp thin edges of the gradervblades which engage the road surface are worn :down very rapidly, and often ruined by con- "tact with rocks embedded in the road surface.

The object of the invention is to overcome this disadvantage by theprovision of an easily detached shoe for the blades of road graders, so that the road may be maintained to better advantage than without the 'shoe, and at the same time the regular cutting blade is protected and preserved.

A further object of this invention is to provide a shoe of this character which will tend to maintain its cutting edgein condition by reason of the engagement of its under surface by the road, and whichmay be easi'-' of a road grader with the improved shoe" applied thereto;

Figure 2 is a rear elevation thereof illustrating the manner in which the shoe is held in position upon the blade,

Figure 3 is a horizontal sectional view taken on the line 33 of Figure 2;

Figure 41 isan enlarged perspective view of a portion of the shoe,

Figure 5 is an end elevation of a portion of a road grader with a modified form of shoe and holder applied thereto; and

Figure 6 is an enlarged perspective view of a portion of the shoe and holder ofthe modified form.

Referring to the drawing, wherein like reference characters refer to corresponding parts throughout the several views, the numeral 1 designates the blade supporting standards which are secured to and depend from the frame 2 of the grader, and upon the free ends of which, by means of brackets 3, is pivotally mounted the moldboard 4, which constitutes a part of the greater blade, the remaining part being the cutting part of the blade.

The angle brackets 5 which are rigidly secured adjacent the upper ends of the moldboardv 4, at the rear thereof, have pivotal connection with links 6, which'are in turn pivotally. connected to the respective standards, which construction permits adjustment of theposition of the grader blade with respect to the surface of the road.

In the embodiment illustrated in Figures 1, 2, 3. and 4, the upper edge of the blade 7 rests and is secured in the offset portion or seat 8 at the lower edge of the moldboard 4 by means of nuts 9 engaging the stud bolts 10, which are connected with the blade 7 and extend through the moldboard 4.

i The protecting shoe 11 which is preferably constructed of hard steel or like material is substantially rectangular in cross section, except that-its front side 12 is upwardly and rearwardly tapered to present the effective cutting edge 13 to the road. It may be formed of one piece or a number of pieces and extends throughout the length of the blade. The bottom of the shoe 25 is flat and forms the road dragging surface.

I A V-shaped recess 1% is provided in the upper wall of the shoe 11 to receive the lower edge of the blade 7, and a series of stud bolts 15 passing through the rear of the shoe and engaging the blade serve to take up play therebetween.

The shoe 11 is maintained in position on the blade 7 byimeans of cooperating rods 16 and 17, provided at each end of the blade at the rear. The hooked end 18 of rod 17 en-. gages over the top of the moldboard 4, the rod 16 passing through eye 19 at the lower end of rod 17 is there held by a nut 21 and is secured to the shoe 11 by one of the bolts 15 passing through its eye 20. It is to be noted that manipulation of the nut 21 on the rod 16, together with the adjustment of bolts 15, will hold the shoe 11 securely in any desired position, with respect to the cutting blade.

Brace straps 22 having their respective ends secured by bolts and serve to hold the shoe 11 from lateral movement on the cutting blade 7.

In the embodiment illustrated in Figures 5 and 6, the cutting blade usually employed is dispensed with. The shoe 11 which in this form is more nearly rectangular in cross section maintains the cutting edge 13 in good condition by reason of the engagement of its flat bottom surface 25' with the road. The shoe is provided with a tapered front side 12*.

The upper inclined portion 26 of the shoe holder 2? is secured in the recess or seat 28 of the moldboard 29 by bolts 30, and immediately below the bottom of the moldboard the holder is bent backwardly in a substantially horizontal plane. The rearmost end of the holder 27 is further bent vertically downward, and provides a shoulder 31 against which the shoe 11 abuts when secured in its operative position by bolts 32.

It will be observed that my improved shoe for road graders obviates the necessity of continually sharpening the blades, as the slope of the front of the shoe is such that the cutting edge is not easily damaged, and the continual wear on its under surface tends to keep the edge sharp. It will be observed that in the first form of the invention, the cutting part of the blade remains in place but is fully protected by the shoe, while in the other form, the cutting part is removed, the shoe holder then serving as the means for connecting the shoe to the moldboard.

Among the advantages of this invention, the following should be emphasized. The shoe protects the road grader plate from abuse when the grader is not in use and in this respect provides means for prolonging the life of a grader blade. In addition, as the shoe is attached to the blade for use in dragging the roads, it provides a greater wearing surface than the ordinary grader blade. The additional cost of the shoe will amount to little compared with the benefits resulting from its use.

Having thus fully described my invention, it is obvious that it is susceptible to various changes in form, proportion, size and the minor details of construction, within the scope of the appended claims, without departing from the spirit or sacrificing any of the advantages of the invention.

In a companion application, Serial No. 20,749, I have claimed specifically the construction disclosed in Figures 5 and 6 of the drawings, the shoe being replaced by an element referred to as a cutter bar having a front and rear cutting edge. Certain of the claims of this application have been drawn broad enough to comprehend the improve ments shown in the aforesaid application.

IVhatis claimed is 1. In a device of the class described, a substantially rectangular shoe having a tapered front side extending backwardly from a front cutting edge, and means for operatively securing said shoe to a road grader so as to run on the ground below the grader blade.

2. In a device of the class described, a substantially rectangular shoe having a flat bottom, a tapered front side extending backwardly from a front cutting edge, and means for operatively connecting said shoe to a road grader for cooperative action with the grader blade.

3. In combination with a road grading machine having a moldboard, a shoe operatively supported from said moldboard and having a flat road dragging surface and a cutting edge.

4. In a device of the class described, substantially rectangular shoe having a tapered front side and a blade receiving recess on said shoe, and means for operatively securing said shoe to a road grader blade, with the edge of the blade in said recess, the shoe running on the ground below the blade.

5. In combination with a road grader having a grader blade consisting of a moldboard, and a cutting blade, a shoe having a recess in its upper side to receive the cutting edge of the blade, and means for securing the shoe to the blade and provide for its detachment.

6. In combination with a road grading machine having a moldboard, a shoe operatively supported from said moldboard and having a substantially flat road engaging surface and a cutting edge at the front of said shoe.

7. In combination with a road grading machine having a moldboard supported thereby, a road cutting and dragging shoe associated with said moldboard, and means for holding said shoe in adjusted positions with respect to said moldboard.

8. In combination with a road grading machine having a grader blade consisting of a moldboard and a cutting blade, a protecting and road engaging shoe mounted on the cutting edge of said blade, and cooperating. means engaging said moldboard, blade and shoe to maintain said shoe in operative position on said blade.

9. In a road grader, a moldboard, a cutting blade connected to said moldboard, a grooved road-engaging shoe on said blade, and means for adjustably holding the cutting edge of said blade in said. groove.

10. In a road grader, a l'flO'ldbOfiId, a cutting blade connected to said moldboard, a grooved road-engaging shoe on said blade, means for adjustably holding the cutting edge of said blade in said groove, and means preventing relative lateral movement of the shoe on the blade.

11. In combination With a road grading machine having a moldboard and blade, a grooved shoe having a fiat road-engaging surface mounted on said blade, means for adjustably holding the shoe in operative position on said blade, and means preventing lateral movement of the shoe on said blade.

12. In combination with a road grading machine having a moldboard with a seat at its lower edge, an element fitting and held in said seat, and a ground engaging device secured to said element and adapted to run on the ground.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

JAMES H. MGVEETY. 

